<?php

namespace app\store\controller;


/**
 * 用户管理
 * Class User
 * @package app\store\controller
 */
class Database extends \think\Controller
{
    /**
     * 数据字典
     * @param string $nickName 昵称
     * @param int $gender 性别
     * @param int $grade 会员等级
     * @return mixed
     * @throws \think\exception\DbException
     */

    public function index(){

        $dbserver   = config('database.hostname');
        $dbusername   = config('database.username');
        $dbpassword   = config('database.password');
        $database   = config('database.database');
        
        $title = '数据字典';
        $mysql_conn = mysqli_connect($dbserver, $dbusername, $dbpassword) or die("Mysql connect is error.");
        mysqli_select_db( $mysql_conn,$database);
        mysqli_query($mysql_conn,'SET NAMES utf8');
        $table_result = mysqli_query($mysql_conn,'show tables');
        //取得所有的表名
        while ($row = mysqli_fetch_array($table_result)) {
            $tables[]['TABLE_NAME'] = $row[0];
        }
        //循环取得所有表的备注及表中列消息
        foreach ($tables AS $k=>$v) {
            $sql  = 'SELECT * FROM ';
            $sql .= 'INFORMATION_SCHEMA.TABLES ';
            $sql .= 'WHERE ';
            $sql .= "table_name = '{$v['TABLE_NAME']}'  AND table_schema = '{$database}'";
            $table_result = mysqli_query( $mysql_conn,$sql);
            while ($t = mysqli_fetch_array($table_result) ) {
                $tables[$k]['TABLE_COMMENT'] = $t['TABLE_COMMENT'];
            }
            $sql  = 'SELECT * FROM ';
            $sql .= 'INFORMATION_SCHEMA.COLUMNS ';
            $sql .= 'WHERE ';
            $sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$database}'";
            $fields = array();
            $field_result = mysqli_query($mysql_conn,$sql);
            while ($t = mysqli_fetch_array($field_result) ) {
                $fields[] = $t;
            }
            $tables[$k]['COLUMN'] = $fields;
        }
        mysqli_close($mysql_conn);
        $html = '';
        //循环所有表
        foreach ($tables AS $k=>$v) {
            //$html .= '<p><h2>'. $v['TABLE_COMMENT'] . ' </h2>';
            $html .= '<table  border="1" cellspacing="0" cellpadding="0" align="center">';
            $html .= '<caption>' . $v['TABLE_NAME'] .'  '. $v['TABLE_COMMENT']. '</caption>';
            $html .= '<tbody><tr><th>字段名</th><th>数据类型</th><th>默认值</th>
        <th>允许非空</th>
        <th>自动递增</th><th>备注</th></tr>';
            $html .= '';
            foreach ($v['COLUMN'] AS $f) {
                $html .= '<tr><td class="c1">' . $f['COLUMN_NAME'] . '</td>';
                $html .= '<td class="c2">' . $f['COLUMN_TYPE'] . '</td>';
                $html .= '<td class="c3"> ' . $f['COLUMN_DEFAULT'] . '</td>';
                $html .= '<td class="c4"> ' . $f['IS_NULLABLE'] . '</td>';
                $html .= '<td class="c5">' . ($f['EXTRA']=='auto_increment'?'是':' ') . '</td>';
                $html .= '<td class="c6"> ' . $f['COLUMN_COMMENT'] . '</td>';
                $html .= '</tr>';
            }
            $html .= '</tbody></table></p>';
        }
        //输出
        echo '<html>
        <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>'.$title.'</title>
        <style>
        body,td,th {font-family:"宋体"; font-size:12px;}
        table{border-collapse:collapse;border:1px solid #CCC;background:#efefef;}
        table caption{text-align:left; background-color:#fff; line-height:2em; font-size:14px; font-weight:bold; }
        table th{text-align:left; font-weight:bold;height:26px; line-height:26px; font-size:12px; border:1px solid #CCC;}
        table td{height:20px; font-size:12px; border:1px solid #CCC;background-color:#fff;}
        .c1{ width: 120px;}
        .c2{ width: 120px;}
        .c3{ width: 70px;}
        .c4{ width: 80px;}
        .c5{ width: 80px;}
        .c6{ width: 270px;}
        </style>
        </head>
        <body>';
        echo '<h1 style="text-align:center;">'.$title.'</h1>';
        echo $html;
        echo '</body></html>';
    }



}
